Mpempe iko bụ akpa nchekwa dị mma maka obere nchekwa mmiri mmiri, nke a na-ahụkarị na ụlọ nyocha, nchekwa mmanụ dị mkpa, mmanya na ọgwụ.

Nkwakọ ngwaahịa ANT na-edobe ndepụta nke vial iko kacha mma n'ụdị na nha niile iji gboo mkpa ngwa dị iche iche, ma azụmahịa ma ụlọ.

N'ịha nha site na 1/3 dram ruo drams 50, a na-enye vial iko ndị a doro anya na mkpuchi mkpuchi phenolic ojii iji nye akara kacha.